Now just stop being worried about wires hanging from here and there. Stressed is passé. Connect to any Bluetooth device, connect and play. Dead batteries can kill your vibe. boAt Rockerz is designed to play for as much as 8 hours. It has a prime definition sound. Do not just be loud, be loud and transparent. We guarantee you haven’t heard such robust bass and vocal clarity from a wireless headphone. The boAt super bass Rockerz 400 wireless headphones will make your listening revel in personal and for real. Plug it in and plug into nirvana.